﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data;
using System.Net;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
       {
            
            Console.WriteLine(NetworkCredential);
            string str = "C# Programming Course";
           int  index1 = str.IndexOf("C#");
           int index = str.IndexOf("COURSE");
           int ind = str.IndexOf("r", 5);  
            Console.WriteLine(ind);
            DateTime startTime = DateTime.Now;
            DateTime endTime = DateTime.Now;
          
         
        }
    }
}
